6,246 articles mezi dny 1.7.2020 a 31.7.2020

Understanding the circadian clocks of individual cells

Two new studies led by UT Southwestern scientists outline how individual cells maintain their internal clocks, driven both through heritable and random means. These findings, published online May 1 in PNAS and May 27 in eLife, help explain how organisms' circadian clocks maintain flexibility and could offer insights into aging and cancer.

Well packed

Biomacromolecules incorporated into tailored metal-organic frameworks using peptide modulators are well shielded but highly active thanks to carefully tuned nanoarchitecture. As scientists report in the journal Angewandte Chemie, this strategy can be used to synthesize an "artificial cell" that functions as an optical glucose sensor.

Coronavirus live news: US buys nearly all global remdesivir stocks as Brazil deaths near 60,000

Three asylum seekers at camp near US border test positive for coronavirus; UN asks for nearly $10bn in aid for Syria; Greece faces ‘huge difficulties’ when flights resume. Follow the latest updatesFauci says new US coronavirus cases could hit 100,000 a dayUS buys up world stock of key Covid-19 drug remdesivirJacinda Ardern decries ‘dangerous’ calls to reopen New Zealand bordersWorld map:...

NASA funds small-business ideas ranging from AI medicine to plumbing for the moon

NASA says it'll fund more than 400 ideas from small businesses, aimed at creating technologies ranging from plumbing fixtures suitable for the moon to AI-based medical assistants that can provide "an extra pair of trained eyes" for crews on Mars. The contracts will provide about $51 million to 312 small businesses in 44 states and Washington, D.C., to support the development of...

NASA pays out $51 million to small businesses with big ideas

NASA has announced its latest batch of small business grants, providing more than 300 businesses a total of $51 million in crucial early-stage funding. Among NASA's own highlights in a news release are high-power solar arrays, a smart air traffic control system for urban flight, a water purification system for use on the moon and improved lithium-ion batteries. The 2020 Phase II announcements...